Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Limiting Binary Diffusivities of Aniline, Styrene, and Mesitylene in Supercritical Carbon Dioxide

Gonzalez, L. M.[Luis M.], Suarez-Iglesias, O.[Octavio], Bueno, J. L.[Julio L.], Pizarro, C.[Consuelo], Medina, I.[Ignacio]
J. Chem. Eng. Data 2007, 52, 4, 1286-1290
ABSTRACT
Measurements of binary diffusion coefficients of aniline, styrene, and mesitylene have been carried out by means of the Taylor-Aris chromatographic method. The diffusivities of mesitylene are consistent with those of Sua'rez et al. (Fluid Phase Equilib. 1998, 153, 167-212) and Swaid and Schneider (Ber. Bunsenges. 1979, 83, 969- 974) but do not agree with the data of Sassiat et al. (Anal. Chem. 1987, 59, 1164-1170) at low densities. The new data for styrene do not agree with those of Sua'rez et al. Of the many predictive equations tested, the only two that can predict the experimental data of the three substances reasonably well are the expressions of Sitaraman- Ibrahim-Kuloor (J. Chem. Eng. Data 1963, 8, 198-201) and Eaton-Akgerman (Ind. Eng. Chem. Res. 1997, 36, 923-931), although both predict that aniline diffuses faster than styrene, which does not appear to be the case.
Compounds
# Formula Name
1 C6H7N aniline
2 C8H8 styrene
3 C9H12 1,3,5-trimethylbenzene
4 CO2 carbon dioxide
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 4
  • Binary diffusion coefficient, m2/s ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Taylor-Aris chromatographic method
  • 15
  • POMD
  • 2
  • 4
  • Binary diffusion coefficient, m2/s ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Mole fraction - 2; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Taylor-Aris chromatographic method
  • 15
  • POMD
  • 3
  • 4
  • Binary diffusion coefficient, m2/s ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Taylor-Aris chromatographic method
  • 15